技术领域technical field
本发明涉及商品防伪和溯源领域，特别是指一种通过可激活的动力源实现防篡改检测功能的NFC防伪芯片，可用于商品防伪、溯源。The invention relates to the field of commodity anti-counterfeiting and traceability, in particular to an NFC anti-counterfeiting chip which realizes the anti-tampering detection function through an activatable power source, and can be used for commodity anti-counterfeiting and traceability.
背景技术Background technique
近场通讯，NFC(Near Field Communication)技术，是由非接触式射频识别(RFID)及互连互通技术整合演变而来的。通过在单一芯片上集成感应式读卡器、感应式卡片和点对点通信的功能，利用移动终端实现移动支付、电子票务、门禁、移动身份识别、防伪等应用。Near field communication, NFC (Near Field Communication) technology, evolved from the integration of non-contact radio frequency identification (RFID) and interconnection technology. By integrating the functions of inductive card reader, inductive card and point-to-point communication on a single chip, mobile terminals are used to realize applications such as mobile payment, electronic ticketing, access control, mobile identification, and anti-counterfeiting.
近年来NFC芯片大量应用于包装盒技术，NFC的加入使得包装盒对用户更加友好，使得人机交互更为便捷，也促使智能包装逐渐应用于物联网领域。In recent years, NFC chips have been widely used in packaging box technology. The addition of NFC makes the packaging box more user-friendly, makes human-computer interaction more convenient, and promotes the gradual application of smart packaging in the field of Internet of Things.
目前实际应用中的NFC防伪措施存在易伪造、转移等特点，容易被破解使得普通NFC防伪措施已经逐渐变成易被低成本复制的“摆设”型技术手段，不能够起到真正的防伪目的，更谈不上高品质的溯源需求，使得市场上的高品质原厂商品及其企业信用受到了来自假货赝品的不断冲击和挑战，商品销售受到了严重的挤压，企业的发展受到了极大影响。也有采用易碎标签的方式增强防伪性能，但是易碎标签仅是损毁了感应天线，标签芯片是不容易被损坏的，这导致标签芯片可以重新绑定天线，伪造新的产品包装，不能很好的起到防伪的作用。At present, the NFC anti-counterfeiting measures in practical applications have the characteristics of being easy to forge and transfer, and are easy to be cracked, so that ordinary NFC anti-counterfeiting measures have gradually become "decoration" technical means that are easy to be copied at low cost, and cannot achieve real anti-counterfeiting purposes. Not to mention the demand for high-quality traceability, the high-quality original products on the market and their corporate credit have been continuously impacted and challenged by counterfeit products, the sales of commodities have been severely squeezed, and the development of enterprises has been severely affected. big impact. There are also methods of using fragile labels to enhance anti-counterfeiting performance, but fragile labels only damage the induction antenna, and the label chip is not easy to be damaged, which leads to the label chip being able to re-bind the antenna and forge new product packaging, which is not very good play the role of anti-counterfeiting.
现有NFC标签芯片用于防伪应用时不能很好解决芯片被重复利用的问题，就算采用易碎标签的形式，虽然标签破碎后无法对标签进行读写操作，但这只是损坏了标签天线，标签芯片是不容易损坏的，可以将芯片拆下后重新绑定天线再次利用。而且标签天线是标签获取能量与外界通信的重要通道，有严格的设计规范，本身有很多限制，不能任意覆盖包装。When the existing NFC tag chip is used in anti-counterfeiting applications, it cannot solve the problem of chip being reused. Even if it is in the form of a fragile tag, although the tag cannot be read and written after the tag is broken, it only damages the tag antenna. The chip is not easily damaged, and the chip can be removed and re-bound to the antenna for reuse. Moreover, the tag antenna is an important channel for the tag to obtain energy and communicate with the outside world. It has strict design specifications and has many restrictions. It cannot cover the package arbitrarily.
发明内容Contents of the invention
本发明提出一种通过检测网络电阻实现防篡改检测的无源NFC防伪芯片，能够解决现有技术不能完善解决商品防伪功能的缺陷。The invention proposes a passive NFC anti-counterfeiting chip that realizes tamper-proof detection by detecting network resistance, which can solve the defect that the prior art cannot perfectly solve the anti-counterfeiting function of commodities.
本发明的技术方案是这样实现的：一种通过可激活动力源实现防篡改检测功能的NFC防伪芯片，包括NFC信号处理单元和防篡改控制单元，所述NFC信号处理单元包括CPU及其连接的NFC基带、存储器和电源模块，以及连接外部天线的外接引脚；所述防篡改控制单元包括防篡改控制电路和一对防篡改检测引脚，所述防篡改检测引脚连接外部的篡改检测传感器；所述篡改检测传感器为一个输出电能的动力源，其通过压电材料物理改变方式触发，平时此动力源不工作无输出，当达到触发条件后动力源产生电能输出。The technical solution of the present invention is achieved in this way: an NFC anti-counterfeiting chip that realizes the anti-tampering detection function through an activatable power source includes an NFC signal processing unit and an anti-tampering control unit, and the NFC signal processing unit includes a CPU and its connected NFC baseband, memory and power module, and external pins connected to the external antenna; the tamper-proof control unit includes a tamper-proof control circuit and a pair of tamper-proof detection pins, and the tamper-proof detection pins are connected to an external tamper detection sensor The tamper detection sensor is a power source that outputs electric energy, which is triggered by a physical change of the piezoelectric material. Usually, the power source does not work and has no output. When the trigger condition is met, the power source generates electric energy output.
作为优选，所述改检测传感器产生的电能通过防篡改检测引脚将电源输入立刻激活芯片内部的防篡改控制电路，置位相应标志位，通过内部逻辑控制，此标志位只能写1，不能写0，一经置位不能更改。As a preference, the electric energy generated by the tamper detection sensor passes through the anti-tamper detection pin to input the power supply to immediately activate the anti-tamper control circuit inside the chip, and set the corresponding flag bit. Through internal logic control, this flag bit can only be written as 1, not Write 0, once set, it cannot be changed.
作为优选，所述NFC芯片可激活的篡改检测传感器不用于通信，该篡改检测传感器为防护网络形式，防护网络可任意在包装或商品任何位置环绕，不需要像天线般严格遵循设计规则，可以通过环绕的网络大面积覆盖包装。Preferably, the tamper detection sensor that can be activated by the NFC chip is not used for communication. The tamper detection sensor is in the form of a protective network. The protective network can be arbitrarily surrounded by packaging or any position of the product. It does not need to strictly follow the design rules like an antenna. The surrounding network covers a large area of the package.
作为优选，所述每个NFC防伪芯片为一个标签，具有唯一编码，唯一编码在芯片生产中写入，不可更改，所述标签植入商品或商品包装中，标签芯片内有eeprom，还可存储商品相关信息。Preferably, each NFC anti-counterfeiting chip is a label with a unique code, which is written in the chip production and cannot be changed. The label is embedded in the commodity or commodity packaging, and there is an eeprom in the label chip, which can also be stored Product related information.
作为优选，所述NFC防伪芯片在触发篡改检测防护机制后还可以正常读取信息，可以用读写器与标签芯片进行通信，但是标签中的防篡改安全标记位已经置位，此标记位置位后不可修改，读写器可读取防篡改安全标志位状态，从而知晓商品包装完整状态。As preferably, the NFC anti-counterfeiting chip can also normally read information after triggering the tamper detection protection mechanism, and can use a reader to communicate with the tag chip, but the tamper-proof security flag in the tag has been set, and the flag position is set Afterwards, it cannot be modified, and the reader can read the status of the tamper-proof security flag, so as to know the complete status of the product packaging.
与现有技术相比，本发明的优点在于：通过NFC芯片内存储的商品相关信息可以验证商品真伪和进行商品溯源工作。通过芯片的防篡改安全机制可以有效防止芯片被转移重复利用。本发明采用的方法成本低廉，可以有效的解决商品防伪、跟踪溯源的需求。Compared with the prior art, the present invention has the advantages that the product authenticity and product traceability can be verified through the product-related information stored in the NFC chip. The anti-tampering security mechanism of the chip can effectively prevent the chip from being transferred and reused. The method adopted in the present invention is low in cost, and can effectively solve the needs of commodity anti-counterfeiting and traceability.
附图说明Description of drawings
图1为本发明的模块示意图；Fig. 1 is the module schematic diagram of the present invention;
图2为本发明的一种实施例的电路模块示意图。FIG. 2 is a schematic diagram of a circuit module of an embodiment of the present invention.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
实施例：参见图1，标准NFC标签芯片具有两个外接引脚，分别用于连接天线输入端和输出端。本发明提供的NFC防伪芯片在标准NFC标签芯片的基础上增加了一对防篡改检测引脚，防篡改检测引脚用于连接内部的防篡改控制电路和外部的篡改检测传感器；所述篡改检测传感器为一个通过特定触发方式能输出电能的动力源，此篡改检测传感器是一个压电材料，例如压电功能陶瓷材料，压电薄膜或者复合压电材料等，平时此动力源不工作，没有任何输出，当包装破损后会撕裂或者弯折压电薄膜，压电薄膜因物理性状的改变会产生电能输出。Embodiment: Referring to FIG. 1, a standard NFC tag chip has two external pins, which are respectively used to connect the input terminal and the output terminal of the antenna. The NFC anti-counterfeiting chip provided by the present invention adds a pair of anti-tamper detection pins on the basis of the standard NFC tag chip, and the anti-tamper detection pins are used to connect the internal anti-tamper control circuit and the external tamper detection sensor; the tamper detection The sensor is a power source that can output electric energy through a specific trigger method. The tamper detection sensor is a piezoelectric material, such as piezoelectric functional ceramic material, piezoelectric film or composite piezoelectric material, etc. Usually, the power source does not work without any Output, when the package is damaged, the piezoelectric film will be torn or bent, and the piezoelectric film will generate electrical energy output due to the change of physical properties.
改检测传感器产生的电能通过防篡改检测引脚将电源输入立刻激活芯片内部的防篡改控制电路，置位相应标志位，通过内部逻辑控制，此标志位只能写1，不能写0，一经置位不能更改。The electric energy generated by the tamper detection sensor passes through the anti-tamper detection pin, and the power input immediately activates the anti-tamper control circuit inside the chip, and sets the corresponding flag bit. Through internal logic control, this flag bit can only be written to 1, and cannot be written to 0. Once set Bit cannot be changed.
每个NFC防伪芯片为一个标签，具有唯一编码，唯一编码在芯片生产中写入，不可更改，所述标签植入商品或商品包装中，标签芯片内有eeprom，还可存储商品相关信息。可通过具有NFC阅读器功能的终端靠近天线区域非接触式阅读标签中信息，确认商品信息，从标签中阅读的信息可发送至后台服务器进行验证，确认商品真伪和溯源商品生产、物流销售等环节信息等。Each NFC anti-counterfeiting chip is a label with a unique code. The unique code is written in the chip production and cannot be changed. The label is embedded in the product or product packaging. There is an eeprom in the tag chip, which can also store product-related information. The information in the label can be read non-contact by the terminal with NFC reader function close to the antenna area, and the product information can be confirmed. The information read from the label can be sent to the background server for verification, to confirm the authenticity of the product and trace the product production, logistics sales, etc. link information, etc.
NFC芯片可激活的篡改检测传感器不用于通信，可以根据需要任意设计走线覆盖包装，确保对商品包装的全面防护。防篡改控制单元平时处于休眠状态，只在触发条件满足的情况下防篡改检测传感器被触发输出电能才激活芯片内部防篡改控制单元工作，芯片功耗极低，不需要外部电源长期供应，可以长期维持产品有效。The tamper detection sensor that can be activated by the NFC chip is not used for communication, and the packaging can be arbitrarily designed to cover the packaging according to the needs to ensure the comprehensive protection of the product packaging. The anti-tamper control unit is usually in a dormant state. Only when the trigger condition is met, the anti-tamper detection sensor is triggered to output power to activate the anti-tamper control unit inside the chip. The power consumption of the chip is extremely low, and no external power supply is required for a long time. Keep the product effective.
NFC防伪芯片在触发篡改检测防护机制后还可以正常读取信息，可以用读写器与标签芯片进行通信，但是标签中的防篡改安全标记位已经置位，此标记位置位后不可修改，读写器可读取防篡改安全标志位状态，从而知晓商品包装完整状态。After the NFC anti-counterfeiting chip triggers the tamper detection protection mechanism, it can still read information normally, and the reader can be used to communicate with the tag chip, but the tamper-proof security flag in the tag has been set, and this flag cannot be modified after it is set. The writer can read the status of the tamper-proof security flag, so as to know the complete status of the product packaging.
实施例：如图2所示，本发明芯片中标准NFC功能由天线101、射频接口102、数字基带103、控制和运算电路104组成。所述天线101通过双向数据总线连接射频接口102，处理与阅读器的模拟接口连接部分；所述射频接口102通过双向数据总线连接数字基带103处理NFC通信数字信号；所述控制与运算单元104通过双向数据总线连接数字基带103，协调处理芯片内部所有单元，完成标准NFC的所有功能。此部分电路完全兼容ISO14443协议，可以与通常阅读器或NFC手机兼容。所述的NFC防伪芯片每个标签具有唯一编码，唯一编码在芯片生产中写入，不可更改，标签中还有可存储商品相关信息的EEPROM区域。而防篡改功能单元由时钟电路105、上电复位电路106、篡改检测电路107、篡改检测传感器接入引脚108组成，其中篡改检测传感器接入引脚108与篡改检测电路107连接。时钟电路105、上电复位电路106、篡改检测电路107共同连接控制与运算单元104，完成防篡改动态检测功能。Embodiment: As shown in FIG. 2 , the standard NFC function in the chip of the present invention consists of an antenna 101 , a radio frequency interface 102 , a digital baseband 103 , and a control and operation circuit 104 . The antenna 101 is connected to the radio frequency interface 102 through a bidirectional data bus to process the analog interface connection part of the reader; the radio frequency interface 102 is connected to the digital baseband 103 through a bidirectional data bus to process NFC communication digital signals; the control and computing unit 104 passes The bidirectional data bus connects the digital baseband 103, coordinates and processes all the units inside the chip, and completes all the functions of the standard NFC. This part of the circuit is fully compatible with the ISO14443 protocol, and can be compatible with common readers or NFC mobile phones. Each tag of the NFC anti-counterfeiting chip has a unique code, which is written during chip production and cannot be changed. There is also an EEPROM area that can store commodity-related information in the tag. The tamper-proof functional unit is composed of a clock circuit 105 , a power-on reset circuit 106 , a tamper detection circuit 107 , and a tamper detection sensor access pin 108 , wherein the tamper detection sensor access pin 108 is connected to the tamper detection circuit 107 . The clock circuit 105, the power-on reset circuit 106, and the tamper detection circuit 107 are jointly connected to the control and operation unit 104 to complete the anti-tamper dynamic detection function.
防篡改检测引脚用于连接外部篡改检测传感器，此传感器是一个通过特定触发方式能输出电能的特殊动力源，平时此动力源不工作，当达到一定触发条件后动力源产生电能。NFC标签芯片防篡改检测引脚连接内部防篡改控制电路，防篡改检测引脚的电源输入立刻激活芯片内部防篡改控制电路，置位相应标志位，通过内部逻辑控制，此标志位一经置位不能更改。防篡改控制单元平时处于休眠状态，只在触发条件满足的情况下防篡改检测传感器被触发输出电能才激活芯片内部防篡改控制单元工作，芯片功耗极低，不需要外部电源长期供应，可以长期维持产品有效。本发明使用的防护网络可任意在包装或商品任何位置环绕，不需要像天线般严格遵循设计规则，可以通过环绕的网络大面积覆盖包装，更好的保护商品。The anti-tamper detection pin is used to connect an external tamper detection sensor. This sensor is a special power source that can output electric energy through a specific trigger method. Usually, this power source does not work. When a certain trigger condition is met, the power source generates electric energy. The anti-tamper detection pin of the NFC tag chip is connected to the internal anti-tamper control circuit. The power input of the anti-tamper detection pin immediately activates the internal anti-tamper control circuit of the chip and sets the corresponding flag. Through internal logic control, once the flag is set, it cannot Change. The anti-tamper control unit is usually in a dormant state. Only when the trigger condition is met, the anti-tamper detection sensor is triggered to output power to activate the anti-tamper control unit inside the chip. The power consumption of the chip is extremely low, and no external power supply is required for a long time. Keep the product effective. The protective network used in the present invention can surround any position of the package or product without strictly following the design rules like an antenna, and can cover a large area of the package through the surrounding network to better protect the product.
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910655605.7ACN110288072A (en) | 2019-07-19 | 2019-07-19 | NFC anti-counterfeiting chip with anti-tampering detection function through activatable power source |
| Application Number | Priority Date | Filing Date | Title |
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| CN201910655605.7ACN110288072A (en) | 2019-07-19 | 2019-07-19 | NFC anti-counterfeiting chip with anti-tampering detection function through activatable power source |
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| CN110288072Atrue CN110288072A (en) | 2019-09-27 |
| Application Number | Title | Priority Date | Filing Date |
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| CN201910655605.7APendingCN110288072A (en) | 2019-07-19 | 2019-07-19 | NFC anti-counterfeiting chip with anti-tampering detection function through activatable power source |
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| CN (1) | CN110288072A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11487441B2 (en) | 2020-04-29 | 2022-11-01 | Macronix International Co., Ltd. | Managing tamper detections in secure memory devices |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203673516U (en)* | 2014-01-20 | 2014-06-25 | 杭州成安物联科技有限公司 | RFID fishing vessel electronic label with variable identification bit |
| CN104332011A (en)* | 2014-10-30 | 2015-02-04 | 上海圣熙信息技术有限公司 | Wristband with energy-saving anti-removal detection mechanism |
| CN104463313A (en)* | 2014-12-08 | 2015-03-25 | 重庆西南集成电路设计有限责任公司 | Ultrahigh frequency electronic tag with anti-dismantling protection function and anti-dismantling protection method |
| CN104834954A (en)* | 2015-05-14 | 2015-08-12 | 成都芯昊芯科技有限公司 | Passive electronic label with dismounting detection function |
| CN105427401A (en)* | 2015-11-05 | 2016-03-23 | 山东超越数控电子有限公司 | Device and method for recording electronic device detachment information |
| US9799180B1 (en)* | 2016-01-29 | 2017-10-24 | Square, Inc. | Multiplexed tamper detection system |
| CN207082126U (en)* | 2017-05-10 | 2018-03-09 | 上海坤锐电子科技有限公司 | The radio frequency chip with label removal prevention function based on electric circuit inspection |
| CN108573296A (en)* | 2018-07-02 | 2018-09-25 | 北京广弘电子信息技术有限公司 | False proof device, anti-counterfeiting system and method for anti-counterfeit |
| CN109492737A (en)* | 2018-12-27 | 2019-03-19 | 上海天臣防伪技术股份有限公司 | RFID chip, RFID electronic label, commodity |
| CN210348529U (en)* | 2019-07-19 | 2020-04-17 | 云南纳光科技有限公司 | NFC anti-counterfeiting chip capable of achieving tamper-proof detection function through activatable power source |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203673516U (en)* | 2014-01-20 | 2014-06-25 | 杭州成安物联科技有限公司 | RFID fishing vessel electronic label with variable identification bit |
| CN104332011A (en)* | 2014-10-30 | 2015-02-04 | 上海圣熙信息技术有限公司 | Wristband with energy-saving anti-removal detection mechanism |
| CN104463313A (en)* | 2014-12-08 | 2015-03-25 | 重庆西南集成电路设计有限责任公司 | Ultrahigh frequency electronic tag with anti-dismantling protection function and anti-dismantling protection method |
| CN104834954A (en)* | 2015-05-14 | 2015-08-12 | 成都芯昊芯科技有限公司 | Passive electronic label with dismounting detection function |
| CN105427401A (en)* | 2015-11-05 | 2016-03-23 | 山东超越数控电子有限公司 | Device and method for recording electronic device detachment information |
| US9799180B1 (en)* | 2016-01-29 | 2017-10-24 | Square, Inc. | Multiplexed tamper detection system |
| CN207082126U (en)* | 2017-05-10 | 2018-03-09 | 上海坤锐电子科技有限公司 | The radio frequency chip with label removal prevention function based on electric circuit inspection |
| CN108573296A (en)* | 2018-07-02 | 2018-09-25 | 北京广弘电子信息技术有限公司 | False proof device, anti-counterfeiting system and method for anti-counterfeit |
| CN109492737A (en)* | 2018-12-27 | 2019-03-19 | 上海天臣防伪技术股份有限公司 | RFID chip, RFID electronic label, commodity |
| CN210348529U (en)* | 2019-07-19 | 2020-04-17 | 云南纳光科技有限公司 | NFC anti-counterfeiting chip capable of achieving tamper-proof detection function through activatable power source |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11487441B2 (en) | 2020-04-29 | 2022-11-01 | Macronix International Co., Ltd. | Managing tamper detections in secure memory devices |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | Application publication date:20190927 | |
| WD01 | Invention patent application deemed withdrawn after publication |